| 淬火过程中温度、组织及应力/应变的有限元模拟 |
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| 引用本文： | 贺连芳,李辉平,赵国群. 淬火过程中温度、组织及应力/应变的有限元模拟[J]. 材料热处理学报, 2011, 32(1) |
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| 作者姓名： | 贺连芳 李辉平 赵国群 |
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| 作者单位： | 山东大学材料液固结构演变与加工教育部重点实验室,山东,济南,250061 |
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| 基金项目： | 国家自然科学基金，教育部"长江学者和创新团队发展计划"，山东大学自主创新基金 |
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| 摘 要： | 为了找到淬火过程中零件产生不规则扭曲变形的原因,选择了H型截面零件为研究对象,建立了相应的有限元分析模型,利用自开发的淬火过程有限元模拟软件对温度、组织和应力/应变进行了耦合分析.通过有限元模拟,得到了温度变化、相变及相变塑性对残余应力及淬火变形的影响,给出了零件内部弹性区及塑性区的演变过程.分析结果表明:零件在淬火过程中经历"弹性-塑性-弹性-塑性-弹性"的演变过程;在淬火过程中,相变塑性导致零件发生不均匀、无规律的扭曲变形.
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| 关 键 词： | 淬火 残余应力 变形 有限元 |
FEM simulation of temperature,phase-transformation and stress/strain in quenching process |
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| HE Lian-fang,LI Hui-ping,ZHAO Guo-qun. FEM simulation of temperature,phase-transformation and stress/strain in quenching process[J]. Transactions of Materials and Heat Treatment, 2011, 32(1) |
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| Authors: | HE Lian-fang LI Hui-ping ZHAO Guo-qun |
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| Affiliation: | Lian-fang,LI Hui-ping,ZHAO Guo-qun(Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials(Ministry of Education),Shandong University,Jinan 250061,China) |
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| Abstract: | In order to find out the reason of un-regular distortion in quenching process,the finite element model of an H-shape cross section part was built.Using a self-developed FEM(finite element method) software,the quenching of this part was simulated by FEM and metallo-thermo-mechanical coupled analysis method.According to the results of FEM simulation,the effect of temperature variation,phase-transformation and phase-transformation plasticity on the residual stresses and quenching distortion were attained,the e... |
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| Keywords: | quenching residual stress distortion finite element method |
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